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A032705 Numbers n such that n prefixed by '5' and followed by '1' is prime. +0
1
2, 4, 7, 10, 17, 23, 26, 28, 35, 38, 43, 44, 47, 50, 52, 53, 58, 59, 64, 65, 70, 71, 74, 79, 80, 82, 85, 86, 88, 98, 100, 103, 106, 107, 113, 115, 124, 134, 136, 142, 143, 146, 148, 151, 152, 155, 158, 163, 169, 172, 187, 194, 197, 199, 202, 205, 208, 212 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A131752 A062365 A049630 this_sequence A088762 A138827 A036685

Adjacent sequences: A032702 A032703 A032704 this_sequence A032706 A032707 A032708

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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